CN208854120U - A kind of Automatic-drawing head - Google Patents
A kind of Automatic-drawing head Download PDFInfo
- Publication number
- CN208854120U CN208854120U CN201821248032.3U CN201821248032U CN208854120U CN 208854120 U CN208854120 U CN 208854120U CN 201821248032 U CN201821248032 U CN 201821248032U CN 208854120 U CN208854120 U CN 208854120U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- reduction gearbox
- stretching head
- gear
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A kind of Automatic-drawing head, is made of stretching head and driving device.Stretching head is made of stretching head ontology, holddown spring, detection inductor and fixing device.Stretching head body upper part is pull rod, and lower part is spur gear, and maintenance nut is equipped in the middle part of pull rod, and holddown spring is set on washer, and detection inductor is set in pull rod top-portion apertures, and fixing device is set to pull rod or more.Lower part spur gear is internally threaded；Driving device is made of motor, reduction gearbox one and reduction gearbox two.One output shaft of reduction gearbox is connected with two input gear one of reduction gearbox, and input gear one is meshed with output gear two, and two side of output gear is located in bracing ring through groove, and is meshed with the spur gear being located on the inside of bracing ring through groove.Stretch pre-tighten during, stretching head automatic precession and can screw out pretension bolt, realize that Automatic-drawing pre-tightens under driving device drive, stretch pretensioning operation fast and easy, laborsaving, safe.
Description
Technical field
The utility model relates to a kind of stretcher stretching head, especially a kind of Automatic-drawing head.
Background technique
Currently, generally there are two types of structural shapes for stretching head used in stretcher.One kind is nut pattern, i.e., in oil cylinder piston
Between setting with pretension bolt match screw thread, piston directly connect with pretension bolt stretching preload；Another kind is swivel nut pattern, spiral shell
Set is internal to be equipped with the screw thread to match with pretension bolt, and swivel nut outer circle and oil cylinder piston inner hole match.Both stretching heads are stretching
When pretensioning operation, stretching head precession and back-out pretension bolt are completed by manual operations, and speed is slow, working efficiency is low, and only fits
For manual stretcher.
Utility model content
For deficiency existing for stretching head used in existing stretcher, the utility model provides a kind of Automatic-drawing head, by drawing
Extension head and driving device composition.The stretching head is made of stretching head ontology, holddown spring, detection inductor and fixing device.
The stretching head body upper part is pull rod, and lower part is spur gear.The pull rod is set among piston, in piston upper end in the middle part of pull rod
Equipped with maintenance nut, maintenance nut upper end is equipped with drag link sleeve, and washer is equipped at the top of drag link sleeve, and the holddown spring is set to washer
On, the detection inductor is set in pull rod top-portion apertures, and the fixing device is set to pull rod set upper side and pull rod lower end, described straight
Gear internal is equipped with the screw thread to match with pretension bolt；The driving device is made of motor, reduction gearbox one and reduction gearbox two.Institute
State motor and be fixed on the top of reduction gearbox one, the reduction gearbox two is fixed on the outside of bracing ring through groove, one output shaft of reduction gearbox with subtract
Fast two input gear one of case is connected, and input gear one is meshed with output gear two, and two side of output gear is located at bracing ring
In through groove, and it is meshed with the spur gear being located on the inside of bracing ring.
The fixing device is made of annulus, sleeve and spring.The annulus is radially provided with multiple through-holes, the sleeve
In annulus through-hole, sleeve it is closed at one end, the other end open wide, the spring be set to sleeve in.
The beneficial effects of the utility model are: driving device can drive stretching head automatic under the control of detection inductor
Precession and back-out pretension bolt, realize that Rapid stretching pre-tightens, and pretensioning operation is high-efficient, can match with Automatic-drawing device, realize intelligence
It can pre-tighten.
Detailed description of the invention
Fig. 1 is the utility model longitudinal direction partial sectional view.
In figure: 10. stretching head ontologies, 11. holddown springs, 12. detection inductors, 13. fixing devices, 20. motors, 21.
Reduction gearbox one, 22. reduction gearboxes two, 101. pull rods, 102. spur gears, 103. maintenance nuts, 104. drag link sleeves, 105. washers,
106. hole, 107. screw threads, 130. annulus, 131. sleeves, 132. springs, 133. through-holes, 210. output shafts, 220. gears one,
221. gears two, 3. pistons, 4. bracing rings, 41. through grooves.
Specific embodiment
A kind of Automatic-drawing head, is made of stretching head and driving device.The stretching head is by stretching head ontology 10, compression bullet
Spring 11, detection inductor 12 and fixing device 13 form.10 top of stretching head ontology is pull rod 101, and lower part is spur gear
102.The pull rod 101 is set among piston 3, and 101 middle part of pull rod is equipped with maintenance nut 103, maintenance nut in 3 upper end of piston
103 upper ends are equipped with drag link sleeve 104, and washer 105 is equipped at the top of drag link sleeve 104, and the holddown spring 11 is set on washer 105, institute
It states detection inductor 12 to be set in 101 top-portion apertures 106 of pull rod, the fixing device 13 is set to 104 upper end of drag link sleeve and pull rod 101
Lower end is equipped with the screw thread 107 to match with pretension bolt inside the spur gear 102；The driving device is by motor 20, reduction gearbox
1 and reduction gearbox 2 22 form, the motor 20 is fixed on the top of reduction gearbox 1, and the reduction gearbox 2 22 is fixed on support
4 through groove, 41 outside is enclosed, one 21 output shaft 210 of reduction gearbox is connected with 2 22 input gear 1 of reduction gearbox, input gear one
220 are meshed with output gear 2 221, and 2 221 side of output gear is located in 4 through groove 41 of bracing ring, and be located at bracing ring 4
The spur gear 102 of 41 inside of through groove is meshed.
The fixing device 13 is made of annulus 130, sleeve 131 and spring 132.It is radially provided on the annulus 130 more
A through-hole 133, the sleeve 131 be set to 130 through-hole 133 of annulus in, sleeve 131 it is closed at one end, the other end open wide, the bullet
Spring 132 is set in sleeve 131.
When Automatic-drawing head works, under the control of detection inductor 12, driving device can drive stretching head ontology 10 certainly
Dynamic precession pretension bolt is realized to stretch and be pre-tightened, and is terminated stretching to pre-tighten, and pretension bolt is pre- next, and stretching head ontology 10 again can be automatic
Screw out pretension bolt.It prepares to pre-tighten next pretension bolt.
Claims (2)
1. a kind of Automatic-drawing head, is made of stretching head and driving device, it is characterised in that: the stretching head is by stretching head sheet
Body, holddown spring, detection inductor and fixing device composition, the stretching head body upper part are pull rod, and lower part is spur gear, institute
Pull rod is stated among piston, is equipped with maintenance nut in piston upper end in the middle part of pull rod, maintenance nut upper end is equipped with drag link sleeve, pull rod
Set top is equipped with washer, and the holddown spring is set on washer, and the detection inductor is set in pull rod top-portion apertures, the maintenance
Device is set to pull rod set upper side and pull rod lower end, is equipped with the screw thread to match with pretension bolt inside the spur gear；The driving
Device is made of motor, reduction gearbox one and reduction gearbox two, and the motor is fixed on one top of reduction gearbox, and the reduction gearbox two is fixed
On the outside of bracing ring through groove, one output shaft of reduction gearbox is connected with two input gear one of reduction gearbox, input gear one and output gear
Wheel two is meshed, and two side of output gear is located in bracing ring through groove, and mutually nibbles with the spur gear being located on the inside of bracing ring through groove
It closes.
2. a kind of Automatic-drawing head according to claim 1, it is characterised in that: the fixing device, by annulus, sleeve and
Spring composition, the annulus are radially provided with multiple through-holes, and the sleeve is set in annulus through-hole, sleeve it is closed at one end, it is another
End is opened wide, and the spring is set in sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248032.3U CN208854120U (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248032.3U CN208854120U (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208854120U true CN208854120U (en) | 2019-05-14 |
Family
ID=66413959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821248032.3U Expired - Fee Related CN208854120U (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208854120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994589A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
-
2018
- 2018-08-03 CN CN201821248032.3U patent/CN208854120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994589A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |